Doosan D50S-5 Operation & Maintenance Manual page 63

Engine control systems are equipped with Engine control systems are equipped with
built-in fault diagnostics. Detected system built-in fault diagnostics. Detected system
faults can be displayed by the Malfunction faults can be displayed by the Malfunction
Indicator Lamp (MIL) as Diagnostic Fault Codes Indicator Lamp (MIL) as Diagnostic Fault Codes
(DFC) or flash codes, and viewed in detail with the (DFC) or flash codes, and viewed in detail with the
use of service tool software. When the ignition key is use of service tool software. When the ignition key is
turned ON the MIL will perform a self-test, illuminate turned ON the MIL will perform a self-test, illuminate
once and then go OFF. If a detected falut condition once and then go OFF. If a detected falut condition
exists, the fault or faults will be stored in the memory exists, the fault or faults will be stored in the memory
of the engine control unit(ECM). Once a fault occurs of the engine control unit(ECM). Once a fault occurs
the MIL will illuminate and remain ON. This signals the MIL will illuminate and remain ON. This signals
the operator that a faults has been detected by the the operator that a faults has been detected by the
ECU. ECU.
(14) Directional (14) Directional Turning Indicator Light
Pull the lever to activate the right turn signal. Pull the lever to activate the right turn signal.
Push the lever to activate the left turn signal. Push the lever to activate the left turn signal.
(15) Brake Fluid Oil Light (15) Brake Fluid Oil Light
The light is ON when the brake fluid oil of The light is ON when the brake fluid oil of
brake reservoir comes down to low level brake reservoir comes down to low level
position. Refill the proper brake fluid oil if position. Refill the proper brake fluid oil if
its light is ON. The light is BLINK when the its light is ON. The light is BLINK when the
temperature of Drive axle over heated. Do not temperature of Drive axle over heated. Do not
continue to operate the lift truck if the light is BLINK continue to operate the lift truck if the light is BLINK
during operating. during operating.
(16) Diesel Engine Water in Fuel Filter Indicator (16) Diesel Engine Water in Fuel Filter Indicator
Light Light
there is water in the fuel filter exceeds there is water in the fuel filter exceeds
100cc. 100cc.
The light will come ON when the ignition The light will come ON when the ignition
switch is turned to the ON position. The light should switch is turned to the ON position. The light should
go off after engine is started. If the light turns on with go off after engine is started. If the light turns on with
the engine running, park the lift truck and stop the the engine running, park the lift truck and stop the
engine. engine.
Drain some fuel (and any water) until clean fuel Drain some fuel (and any water) until clean fuel
flows from the filter which approximately takes 5 to 6 flows from the filter which approximately takes 5 to 6
seconds. seconds.
(17) DPF : Inhibit ON (17) DPF : Inhibit ON
This This
regeneration and service regeneration of regeneration and service regeneration of
DPF are blocked. The light turns on if DPF are blocked. The light turns on if
pressing a same logo of the DPF switches pressing a same logo of the DPF switches
permanently, and turns off when placing the DPF permanently, and turns off when placing the DPF
switch on the neutral position switch on the neutral position
DPF Switch DPF Switch
Turning Indicator Light
Indicates when the engine is running, Indicates when the engine is running,
light light indicates indicates that that
Blinking of the light indicates the quantity Blinking of the light indicates the quantity
of PM loaded on DPF is required of of PM loaded on DPF is required of
regeneration. The buzzer will sound to regeneration. The buzzer will sound to
warn warn
Regeneration. Park the vehicle at a safe Regeneration. Park the vehicle at a safe
place, and perform service regeneration. Pressing a place, and perform service regeneration. Pressing a
same logo of the DPF switches two or three same logo of the DPF switches two or three
seconds returns the switch to the neutral position, seconds returns the switch to the neutral position,
and causes service regeneration for approx. 20 to and causes service regeneration for approx. 20 to
30 minutes. In such a case the rotation rate of the 30 minutes. In such a case the rotation rate of the
engine automatically rises. Once regeneration is engine automatically rises. Once regeneration is
complete, the rotation rate returns to idle rate, and complete, the rotation rate returns to idle rate, and
the light turns off. the light turns off.
If the light does not blink, but is kept turned on, If the light does not blink, but is kept turned on,
automatic regeneration environment is formed such automatic regeneration environment is formed such
as sufficiently high temperature of exhaust gas, and as sufficiently high temperature of exhaust gas, and
automatic regeneration is executed. It is allowed for automatic regeneration is executed. It is allowed for
driver to continue his/her work with the engine kept driver to continue his/her work with the engine kept
turned on until the light turns off. (No need for turned on until the light turns off. (No need for
operating the switch) operating the switch)
(19) DPF : High Temperature of Exhaust Gas (19) DPF : High Temperature of Exhaust Gas
The light indicates rise of temperature of exhaust gas to The light indicates rise of temperature of exhaust gas to
temperature probable of occurrence of service temperature probable of occurrence of service
(20) Engine Warning Light (Red) (20) Engine Warning Light (Red)
(21) Engine Check Light (Yellow) (21) Engine Check Light
automatic automatic
62 62
Steering Column Tilting Angle Steering Column Tilting Angle
Adjustment Adjustment
driver driver to to do do Parked Parked
recycling or automatic recycling of DPF recycling or automatic recycling of DPF
(500 (500 ℃ ℃ or higher). It is required of or higher). It is required of
continuous continuous driving driving
regeneration if the light turns on. regeneration if the light turns on.
When engine is forcibly stopped by When engine is forcibly stopped by
ECU due to fatal error, Engine stop ECU due to fatal error, Engine stop
lamp turns on. lamp turns on.
(Yellow)
When When engine engine detects detects
(Diagnostic Trouble Code), Engine (Diagnostic Trouble Code), Engine
warning lamp turns on. It includes warning lamp turns on. It includes
Low oil pressure, Over heat, etc. Low oil pressure, Over heat, etc.
Operation Section Operation Section
Service Service
or or service service
any any DTC DTC